soils are made up of mineral portion inorganic portion air and water what is meant by the word organic

Walnut trees produce edible seeds with a hard outer covering. Maple trees produce seeds with winglike edges. What type of seed dispersal applies to each type of tree?

Which is more effective in removing dirt or germs and why. Hand soap or Hand Sanitizer?

the appearance of pebbly texture on the surface of a deep wound indicates what process is taking place A. Granulation B. scabbing C. Grafting D. Coagulation

Choose ALL key terms that describe a compound. cannot be broken down chemically can be broken down chemically only one type of atom two or more elements and/or compounds mixed together two or more atoms bonded together

1. What is an atom? the basic unit of a chemical element

What does spermatogenesis produce from one original cell.

Artificial Selection Section Cathy read about whales and learned that the average length of a blue whale is 80 feet. She also read that they can grow to be 94 feet long. Cathy wondered if the length of the blue whale is genetic.

What is an element of calcium?

Select the correct statement about the immune system. Select the correct statement about the immune system. All antigen receptors produced by a single B cell or T cell are identical and bind to the same epitope.

Which of the following statements about H. erectus fossils is NOT true? Group of answer choices They are often found associated with Acheulean stone tools. They indicate increasing hunting proficiency.